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"Shim pulses" for NMR spectroscopy and imaging

Topgaard, Daniel LU ; Martin, RW; Sakellariou, D; Meriles, CA and Pines, A (2004) In Proceedings of the National Academy of Sciences 101(51). p.17576-17581
Abstract
A way to use adiabatic radiofrequency pulses and modulated magnetic-field gradient pulses, together constituting a "shim pulse," for NMR spectroscopy and imaging is demonstrated. These pulses capitalize on phase shifts derived from probe gradient coils to compensate for nonlinear intrinsic main magnetic field homogeneity for spectroscopy, as well as for deviations from linear gradients for imaging. This approach opens up the possibility of exploiting cheaper, less-than-perfect magnets and gradient coils for NMR applications.
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author
publishing date
type
Contribution to journal
publication status
published
subject
keywords
numerical, pulse sequence, MRI, adiabatic, modulated gradient, optimization
in
Proceedings of the National Academy of Sciences
volume
101
issue
51
pages
17576 - 17581
publisher
National Acad Sciences
external identifiers
  • wos:000225951500004
  • scopus:11144244636
ISSN
1091-6490
DOI
10.1073/pnas.0408296102
language
English
LU publication?
no
id
beaf1ceb-d2b6-4bdd-83d6-5a924fa5267a (old id 258254)
date added to LUP
2007-11-03 10:29:57
date last changed
2017-08-27 04:08:31
@article{beaf1ceb-d2b6-4bdd-83d6-5a924fa5267a,
  abstract     = {A way to use adiabatic radiofrequency pulses and modulated magnetic-field gradient pulses, together constituting a "shim pulse," for NMR spectroscopy and imaging is demonstrated. These pulses capitalize on phase shifts derived from probe gradient coils to compensate for nonlinear intrinsic main magnetic field homogeneity for spectroscopy, as well as for deviations from linear gradients for imaging. This approach opens up the possibility of exploiting cheaper, less-than-perfect magnets and gradient coils for NMR applications.},
  author       = {Topgaard, Daniel and Martin, RW and Sakellariou, D and Meriles, CA and Pines, A},
  issn         = {1091-6490},
  keyword      = {numerical,pulse sequence,MRI,adiabatic,modulated gradient,optimization},
  language     = {eng},
  number       = {51},
  pages        = {17576--17581},
  publisher    = {National Acad Sciences},
  series       = {Proceedings of the National Academy of Sciences},
  title        = {"Shim pulses" for NMR spectroscopy and imaging},
  url          = {http://dx.doi.org/10.1073/pnas.0408296102},
  volume       = {101},
  year         = {2004},
}